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Q:

Which solution has the highest pH?

A) 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq) B) 50.0 mL 0.0500 M sodium hydroxide, NaOH (aq)
C) 50.0 mL 0.0500 M nitric acid, HNO3 (aq) D) 50.0 mL 0.0500 M nitrous acid, HNO2 (aq)
 
Answer & Explanation Answer: A) 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq)

Explanation:

50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq) has the highest pH value.

Sodium hydroxide and Calcium hydroxide are strong bases so they completely ionize in solution. Because they ionize at the same rate, and Calcium hydroxide has the higher pH calculated, then Calcium hydroxide, in fact, has the highest pH.

Nitric acid is a strong acid, so it completely ionizes in water. Whilst nitrous acid is a weak acid. Therefore, the nitric acid solution has the LOWEST ph.

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Filed Under: Chemistry
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8 9429
Q:

The particle with 13 protons and 10 electrons is

A) Al -atom B) Al3+ ion
C) nitrogen isotope D) None of these
 
Answer & Explanation Answer: B) Al3+ ion

Explanation:
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Filed Under: Chemistry

23 9417
Q:

Which of the following is a volcanic plateau

A) Anatolia plateau B) Tibetan plateau
C) Antrum plateau D) Brazilian plateau
 
Answer & Explanation Answer: C) Antrum plateau

Explanation:
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Filed Under: World Geography

15 9417
Q:

All the following statements regarding the Indus Valley Civilization are correct except

A) The Indus Valley Civilization was an advanced urban civilization B) Iron was not known to the people
C) It is difficult to say to which race the people belonged D) The people knew nothing about agriculture
 
Answer & Explanation Answer: D) The people knew nothing about agriculture

Explanation:
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Filed Under: Indian History

13 9412
Q:

Which of the following has the largest eyes of all land mammals?

A) Horse B) Elephant
C) Camel D) Rhinocerous
 
Answer & Explanation Answer: A) Horse

Explanation:
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Filed Under: Animals and Birds

48 9408
Q:

The famous book Kankal is authored by ?

A) Ketan Bhagat B) Mahesh Rao
C) Nirmal Verma D) Jaishankar Prasad
 
Answer & Explanation Answer: D) Jaishankar Prasad

Explanation:
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Filed Under: Books and Authors
Exam Prep: Bank Exams , CAT
Job Role: Bank PO

23 9403
Q:

A spreadsheet contains

A) Rows B) Columns
C) Both A & B D) Tables
 
Answer & Explanation Answer: C) Both A & B

Explanation:

A_spreadsheet_contains1553603758.png image

 

A spreadsheet contains both rows and columns.

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Filed Under: Computer
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5 9403
Q:

Which alphabet is a vegetable?

A) C B) T
C) P D) B
 
Answer & Explanation Answer: C) P

Explanation:

The letter 'P' sounds same as the vegetable 'PEA'.

 

Hence P is an alphabet which is a vegetable.

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Filed Under: Logic Puzzles
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6 9399